Question

Please help with sum number 7 (i)..
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Answer 1

Answer:

The value of x will be 45°

angle AED+angle DEC=180°(Linear Pair)

Or , angle AED=180°-95°=85°

Now since DE||BC

Therefore,

angle= angleCBA=50°(Corresponding angles are equal)

Now,

In triangle AED

x+85+50=180°(Angle sum property of a triangle)

Or, x=(180-135)°= 45°